These one-eyed monsters are members of the Underworld Army from the Kid Icarus series. In Smash Run, these scouts will usually attack alone and chase fighters. If their eye starts to glow red, they're preparing to fire a projectile. They're really weak, though, so you should have no trouble.

These one-eyed creatures from the Kid Icarus series are the Underworld Army's surveillance drones. In Smash Run, they tend to waver about as they chase after you. When their eyes glow red, it means they're about to fire energy blasts at you, so watch out! Other than that, though, they're not particularly tough.

Prior to their appearance as enemies in Smash Run, Monoeyes were featured in the Captain N: The Game Master comic books. In "The Happy Zone", they appeared alongside Reos as enemies that attacked Samus Aran.